* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "微软雅黑, Microsoft Yahei Ul";
}
html,
body {
  font-size: 14px;
  margin: 0;
}
ul,
ol {
  list-style: none;
}
input {
  outline: none !important;
}
/* 去除input 为number时的上下箭头 */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
input[type="number"] {
  -moz-appearance: textfield;
}
/*不要下划线*/
a {
  text-decoration: none;
}
/* 网页滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-thumb {
  border-radius: 5px;
  box-shadow: none;
  background: #ccc;
}

::-webkit-scrollbar-track {
  box-shadow: none;
  border-radius: 5px;
  background: transparent;
}
/* 通用宽度与清除浮动 */
.overall_width {
  width: 100%;
  float: left;
}
.overall_width::after {
  content: "";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
.center_box {
  width: 1200px;
  margin: 0 auto;
}
